Collapsible bed



Aug. 16, 1938.

B. McK. GRAHAM COLLAPSIBLE BED Filed Aug.-7 1935 2 Sheets-Sheet 1grdiahz/ [NV ENTOR II/KIII/lk ATTORNEY WITNESS Aug. 16, 1938. B. McK.GRAHAM COLLAPSIBLE .BED

2 Sheets-Sheet 2 Filed Aug. 7, 1935 Ben/M67060? ATTORNEY WITNESSPatented Aug. 16, 1938 UNITED STATES PATENT OFFEQ 2 Claims.

The invention relates to a bed and more especially to a collapsible orextensible bed.

The primary object of the invention is the provision of a bed of thischaracter, wherein the same when collapsed will be concealed within acabinet, the latter functioning as a dresser or other article offurniture and thus the collapsing of the bed affords space within anenclosure and such bed will have disappeared, the operation of the bedbeing simple and assures easy control in the extending or collapsing ofthe same.

Another object of the invention is the provision of a bed of thischaracter, wherein on the collapsing thereof the mattress carriedthereby will be automatically folded into compact form and the latterwith the bed will be concealed within a cabinet or the like, the bedbeing of novel construction.

A further object of the invention is the provision of a bed of thischaracter, which is comparatively simple in construction, thoroughlyreliable and effective in its operation, strong, durable, readily andeasily handled, assuring compactness when in collapsed condition andinexpensive to manu- 25 facture.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, illustrated in the accompanyingdrawings, which disclose the preferred embodiment of the invention andpointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is a vertical sectional view through 39 a cabinet showing thebed constructed in accordance with the invention a part thereof andextended.

Figure 2 is a fragmentary side elevation showing the bed partly folded.

Figure 3 is a sectional view on the line 3-3 of Figure 2 looking in thedirection of the arrows.

Figure 4 is a vertical sectional View through the cabinet showing thebed collapsed or folded.

Figure 5 is a front elevation thereof.

Figure 6 is a bottom plan view of the bed when extended.

Similar reference characters indicate corresponding parts throughout theseveral views in 50 the drawings.

Referring to the drawings in detail, A designates generally a cabinethaving at the top thereof a drawer l3 while provided in this cabinetbelow the said drawer is a compartment I l which 55 opens through thefront of the said cabinet, the

drawer being manipulated from the front of the latter.

Adapted to occupy the space H within the cabinet A is the collapsiblebed which comprises a foot section or board l 2 having connection withlazy tongs B, these being at opposite sides of a canvas mattress supportl3 and each lazy tong includes the crossed levers I 4 pivoted at theircrossing points as at l5 while the levers at their meeting ends arepivoted together at l6, these .10 being in the form of rods and underliethe support l3 at a distance considerably below the same.

The tongs B at one end have the sliding connections at I! with the sidesof the cabinet A inwardly of the space I I therein and likewise thesetongs B at the other end through linkage l3 and I9 have pivotalconnection at ll with the foot section or board l2 at the bracketsthereon.

The support l3 through the instrumentality of 20 the end springs 2|connected therewith and with the pivot I1 and to a cross piece fixed toand between the brackets 20, respectively is sustained under tensionwhen the bed is extended while supplementing the support [3 are springtensioned straps 22, these underlying the said support l3 and haveconnection with the lazy tongs B, the tensioning of said straps 22 beinglateral so that the support [3 will be prevented from sagging on theextending of the bed.

When the bed has been collapsed by pushing inwardly upon the section I2, it will be concealed within the space H in the cabinet A.

Associated with the end portions of the lazy tongs B are lifter levers23 and 24, respectively, the latter carrying connections I! while thelevers 23 are swingingly connected to the outermost pivot [5 of saidtongs. The levers 24, each by the connection I? slides in a curvedslotted track 25, there being two of these fixed to opposite sides ofthe cabinet and a link 25 pivoted to said lever 24 and at 21 to theextension 28 of one of the levers I 4 while the levers 23 each ispivoted at 30 to a link 3| pivoted at 32 to an extension 33 of anotherof said levers l4. These levers 23 and 24, which are in pairs, eachcarries at the inner ends a coiled tensioneol lifter strap 34 which isdisposed transversely of a mattress 35 when upon the support l3 so as tobe disposed between the latter and said mattress at a breaking joint 36between folding sections 31 of said mattress 35 so that when the bed iscollapsed the mattress 35 will automatically fold into compact formunder the action of the levers 23 and 24 and the lifter strap 34connecting with each pair of said levers Z3 and 24 as is clearly shownin Figures 2 and 3 of the drawings.

When the bed is to be occupied on the extending cf the lazy tongs B themattress 35 will automatically unfold and be supported upon the supportI3 which is rendered taut when the lazy tongs B are extended, the levers23 and 24 being lowered on the extension of said lazy tongs. When thebed is collapsed under the action of the lazy tongs B the levers 23 and24 will be swung upwardly and in this manner automatically folding themattress 35 so that the latter and the said bed will become concealedwithin the space H in the cabinet A as is shown in Figure 4 of thedrawings. The links l8 are of considerably greater length than the linksIS, the latter being slightly curved and are pivoted at l9 to the endtoggle levers of the lazy tongs B. These links I8 and I3 when the lazytongs B have been extended will sustain the foot section or board l2 ina perpendicular position, there being no possibility of the closing ofthe lazy tongs B accidentally when the bed is occupied due to the factthat the weight upon the mattress through such occupancy is distributedthroughout the length of the lazy tongs laterally to opposite sidesthereof and the strain is placed at the crossing points l of the leversI l while strain in a longitudinal direction is nil.

The drawer It] carries handles 38 and the foot section or board alsocarries the handles 39. The bed is extended and collapsed in an easymanner through the operation of the lazy tongs B and also the mattress35 is automatically folded and unfolded as hereinbefore set forth.

It is, of course, understood that the mattress 35 is supported by thespring tensioned strap when occupied for sleeping or resting purposes.The links 26 and 3| through their connection with the lazy tongs B andthe levers 23 and 24 will automatically swing the said levers verticallyon the folding and unfolding of the bed, the levers 24 being slidablyconnected by the connections I! with the tracks 25 so that the lazytongs when collapsed will be housed well within the cabinet A.

What is claimed is:

1. A collapsible bed comprising a cabinet having a displaceable frontforming a foot board, a pair of lazy-tongs arranged between the cabinetand the foot board and havingv connection therewith in spaced parallelrelation to each other for extension and contraction without and withinsaid cabinet, a flexible mattress support yieldably fitted at oppositeends with the connections between the lazy-tongs, the cabinet and thefoot board, respectively, a sectional, foldable mattress on saidmattress support and having fold lines remote from its ends, liftinglevers on each side of the lazy-tongs pivoted on the lazytongs near eachend thereof, respectively, and extending toward the center of thelazy-tongs, means operativelyconnecting the outer ends of said leverswith the lazy-tongs whereby retracting the lazy-tongs lifts the innerends of the levers, and resilient lifting members interposed between themattress and mattress support and connecting each lever with acorresponding lever on the opposite side whereby on retraction of thelazy-tongs the mattress will be lifted along fold lines remote from theends thereof and folding of the mattress assisted.

2. A collapsible bed comprising a cabinet having a displaceable frontforming a foot board, a pair of lazy-tongs arranged between the cabinetand the foot board and having connection therewith in spaced parallelrelation to each other for extension and contraction without and withinsaid cabinet, a flexible mattress support yieldably fitted at oppositeends with the connections between the lazy-tongs, the cabinet and thefoot board, respectively, a sectional, foldable mattress on saidmattress support and having fold lines remote from its ends, liftinglevers on each side of the lazy-tongs pivoted on the lazytongs near eachend thereof, respectively, and extending toward the center of thelazy-tongs, means operatively connecting the outer ends of said leverswith the lazy-tongs whereby retracting the lazy-tongs lifts the innerends of the levers, resilient lifting members interposed between themattress and mattress support and connecting each lever with acorresponding lever on the opposite side whereby on retraction of thelazy-tongs the mattress will be lifted along fold lines remote from theends thereof and folding of the mattress assisted and tensioned strapsconnected at intervals with the lazy-tongs and underlying the mattresssupport intermediate with respect to the tensioned ends of said support.

BEN MCKEITHAN GRAHAM.

